/* 主菜单样式 */
.main-menu {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    text-align: center;
    padding: 2rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.main-menu h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
    background: linear-gradient(45deg, #fff, #f0f0f0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.main-menu p {
    font-size: 1.2rem;
    margin-bottom: 3rem;
    opacity: 0.9;
    max-width: 800px;
    line-height: 1.6;
}

.menu-buttons {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 900px;
    width: 100%;
}

.menu-btn {
    background: rgba(255, 255, 255, 0.15);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    padding: 2rem 1.5rem;
    border-radius: 20px;
    font-size: 1.2rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    text-decoration: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.menu-btn:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
}

.menu-btn:active {
    transform: translateY(-2px);
}

.menu-btn .icon {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.menu-btn .title {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.menu-btn .description {
    font-size: 0.9rem;
    opacity: 0.8;
    line-height: 1.4;
}

.review-btn:hover {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.test-btn:hover {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .menu-buttons {
        grid-template-columns: repeat(2, 1fr);
        max-width: 600px;
    }
}

@media (max-width: 768px) {
    .main-menu {
        padding: 1rem;
    }
    
    .main-menu h1 {
        font-size: 2.5rem;
    }
    
    .main-menu p {
        font-size: 1rem;
        margin-bottom: 2rem;
    }
    
    .menu-buttons {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        max-width: 400px;
    }
    
    .menu-btn {
        padding: 1.5rem 1rem;
        font-size: 1.1rem;
    }
    
    .menu-btn .icon {
        font-size: 2rem;
    }
    
    .menu-btn .title {
        font-size: 1.2rem;
    }
} 